Re: "Cannot Negotiate" Answer #1!! (fwd)
DT Scott (dtscott@scott.net)
Sat, 7 Dec 1996 15:30:50 -0600 (CST)
>
> - --- On Thu, 05 Dec 1996 15:55:09 -0800 "Donn F. Lasher" <dlasher@owt.com> wrote:
>
> >#2 - Port Death - It appears that on certain occaisions, a modem may
> >hang-up/reset (&d3) and lose sync with the portmaster. The modem is still
> >working, so it will answer the phone. However, with lost/no sync with the
> >Portmaster, all the end user will get is either garbage or nothing. The
...
> The easiest answer to do this is to set the pm2 serial port speed to the
> modem vendor's "default" serial port speed. For example, the Hayes
> Accura modem defaults to 115200 before doing any auto speed detection;
> therefore if the pm2 is set to this same speed, there is never/seldom
> a case of the modem-pm2 being out of sync. If you make any speed changes
> make sure the modem table entry and the serial port speed are set to
> whatever this default speed happens to be. I'd guess the majority of
> current modems probably default to 115200.
>
> There are a few modems on the market that allow you to lock the modem's
> serial port speed to some specific value, and if the pm2 serial port
All modems that I know of (for YEARS) have allowed you to lock the speed.
They just don't document HOW! Simply connect to the modem at your desired
speed (say 115,200) and then write the EEPROM: AT&W
That's it!
You can use the attach feature of the PM after the modem is connected and
do it there. No problem and it works forever (or until your modem goes
screwy if you have a brand that tends to do such things).
I get the digest, so sorry if this is the um-teenth comment on this...
Later!
Derric
--
Derric Scott Scott Network Services, Inc. P. O. Box 361353
derric@scott.net (205)987-5889 Birmingham, AL 35236
--
Derric Scott Scott Network Services, Inc. P. O. Box 361353
derric@scott.net (205)987-5889 Birmingham, AL 35236